De or het hofopera?

The correct Dutch article is:

de hofopera

How to use hofopera

the hofoperade hofopera
this hofoperadeze hofopera
that hofoperadie hofopera
our hofoperaonze hofopera
your hofoperajouw hofopera
every hofoperaelke hofopera
which hofopera?welke hofopera?
a big hofopera / the big hofoperaeen grote hofopera, de grote hofopera